After a slight relief for a day, the air quality again worsened on Wednesday morning. The Air Quality Index (AQI) was recorded at 361 , which is in the ‘severe’ category, as per the System of Air Quality and Weather Forecasting And Research (SAFAR).
On Tuesday, the air quality had improved to the ‘very poor’ category.
As per the SAFAR, areas like Delhi University, Pusa Road, Lodhi Road, Mathura Road, IIT Delhi, Indira Gandhi International Airport (Terminal-3) and Ayanagar recorded air quality in the 'very poor' category with an AQI of 341, 333, 316, 329, 320, 336, and 324 respectively.
AQI between the range of 51 and 100 is considered as 'satisfactory' or 'very good', 101-200 is 'moderate', 201-300 falls under the category of 'poor'. While 300-400 is considered as 'very poor', levels between 401-500 fall under the 'hazardous' category.
According to the SAFAR forecast, AQI is likely to improve on January 20. It is expected to improve further on January 21. There may be a marginal deterioration in AQI on January 22.
